First pass of compiler wrapping class

Change-Id: I343625310f69cc4de315af91b9cc72bb4da8f59b
diff --git a/src/runtime.h b/src/runtime.h
index 49657c2..323c6c8 100644
--- a/src/runtime.h
+++ b/src/runtime.h
@@ -36,7 +36,7 @@
     // returns null if problem parsing and ignore_unrecognized is false
     static ParsedOptions* Create(const Options& options, bool ignore_unrecognized);
 
-    std::vector<DexFile*> boot_class_path_;
+    std::vector<const DexFile*> boot_class_path_;
     const char* boot_image_;
     bool check_jni_;
     size_t heap_initial_size_;